Compact power generator for wind turbine system

Abstract

An efficient compact power generator system is provided. The system includes a shaft assembly, upper fan assembly, lower fan assembly, windmill opening assembly, bevel gear assembly, planetary gearset, and generator. The shaft assembly includes upper and lower shafts. The upper fan assembly includes an upper fan. The lower fan assembly includes a lower fan and bearings. The windmill opening assembly includes inlet and outlet openings. The bevel gear assembly includes a top bevel gear, a middle bevel gear, and a bottom bevel gear which are arranged and configured to reverse the direction of the lower fan to synchronize with the upper fan.

What is claimed is: 
     
         1 . A power generator system, comprising:
 a upper fan assembly including an upper fan, the upper fan fixedly attached to an upper shaft and configured to rotates in a first direction;   a lower fan assembly including a lower fan disposed vertically below the upper fan, the lower fan attached to the upper shaft and configured to rotate in a second direction opposite the first direction;   a bevel gear assembly including a top bevel gear, a middle bevel gear, and a bottom bevel gear, the top bevel gear attached to the lower fan and the upper shaft, the bottom bevel gear attached to the upper shaft, the top, middle, and bottom bevel gears arranged and configured to rotate the lower fan in the second direction; and   a generator attached to a lower shaft such that rotation of the lower shaft generates electricity,   wherein the upper fan and lower fan work in conjunction to drive the generator in the same direction.   
     
     
         2 . The power generator system of  claim 1 , wherein the top bevel gear, the middle bevel gear, and the bottom bevel gear are arranged and configured such that the top bevel gear engage with the middle bevel gear and the middle bevel gear engage with the bottom bevel gear. 
     
     
         3 . The power generator system of  claim 2 , wherein the middle bevel gear causes the top bevel gear to rotate in a first direction and the bottom bevel gear to rotate in a second direction opposite the first direction. 
     
     
         4 . The power generator system of  claim 2 , wherein the middle bevel gear includes two bearings to engage with the top bevel gear and the bottom bevel gear. 
     
     
         5 . The power generator system of  claim 2 , wherein the bottom bevel gear includes a one-way bearing engaged with the upper shaft, wherein the one-way bearing is disposed between the bottom bevel gear and the upper shaft to enable rotation in the second direction and to transmit torque between the bottom bevel gear and the upper shaft. 
     
     
         6 . The power generator system of  claim 1 , further comprising a planetary gear set connected to the upper shaft and the lower shaft, wherein one end of the planetary gear set is attached to the upper shaft that is connected to the bottom bevel gear and the other end is attached to the lower shaft that is connected to the generator. 
     
     
         7 . The power generator system of  claim 6 , wherein the planetary gear set includes a sun gear, a plurality of planet gears, a ring gear, and a carrier, wherein the upper shaft is attached to the carrier, the carrier is attached to the plurality of planet gears, and the plurality of planet gears rotate around axes that revolve around the sun gear in which the sun gear rotates in place. 
     
     
         8 . The power generator system of  claim 1 , wherein a bearing is disposed between the lower fan and the bottom bevel gear, the bearing rotates freely on the upper shaft to cause rotation of the lower fan. 
     
     
         9 . The power generator system of  claim 1 , wherein the upper and lower fans include blades, the blades of the upper fan include an upright airfoils causing the upper fan to rotate in the first direction and the blades of the lower fan include an inverse airfoils opposite the upright airfoils causing the lower fan to rotate in the second direction. 
     
     
         10 . A power generator system, comprising:
 a shaft assembly including an upper shaft and a lower shaft, the upper shaft and the lower shaft are disposed vertically and coaxially;   an upper fan assembly including an upper fan, the upper fan fixedly attached to the upper shaft;   a lower fan assembly including a lower fan and bearings, the lower fan being freely rotatable about the upper shaft;   a windmill opening assembly including inlet and outlet openings, the inlet openings including a right side inlet opening and a left side inlet opening, the right side inlet opening arranged and configured such that wind flows through the right side inlet opening causes the upper fan to spin to one direction, the left side inlet opening arranged and configured such that wind flows through the left side inlet opening causes the lower fan to spin in the opposite direction;   a bevel gear assembly including a top bevel gear, a middle bevel gear, and a bottom bevel gear, the top bevel, middle bevel, and bottom bevel gears being arranged and configured such that the top bevel gear engage with the middle bevel gear and the middle bevel gear engage with the bottom bevel gear; and   a generator, the generator attached to the lower shaft such that rotation of the lower shaft generates electricity,   wherein the upper fan and lower fan work in conjunction to drive the generator in the same direction.   
     
     
         11 . The power generator system of  claim 10 , wherein the top bevel gear is attached to the lower fan and the bottom bevel gear is attached to the upper shaft. 
     
     
         12 . The power generator system of  claim 11 , wherein the middle bevel gear causes the top bevel gear to rotate in a first direction and the bottom bevel gear to rotate in a second direction opposite the first direction. 
     
     
         13 . The power generator system of  claim 12 , wherein the middle bevel gear includes two bearings to engage with the top bevel gear and the bottom bevel gear. 
     
     
         14 . The power generator system of  claim 11 , wherein the bottom bevel gear includes a one-way bearing engaged with the upper shaft, wherein the one-way bearing is disposed between the bottom bevel gear and the upper shaft to enable rotation in the second direction and to transmit torque between the bottom bevel gear and the upper shaft. 
     
     
         15 . The power generator system of  claim 11 , further comprising a planetary gear set connected to the upper shaft and the lower shaft, wherein one end of the planetary gear set is attached to the upper shaft that is connected to the bottom bevel gear and the other end is attached to the lower shaft that is connected to the generator. 
     
     
         16 . The power generator system of  claim 15 , wherein the planetary gear set includes a sun gear, a plurality of planet gears, a ring gear, and a carrier, wherein the upper shaft is attached to the carrier, the carrier is attached to the plurality of planet gears, and the plurality of planet gears rotate around axes that revolve around the sun gear in which the sun gear rotates in place. 
     
     
         17 . The power generator system of  claim 10 , wherein a bearing is disposed between the lower fan and the bottom bevel gear, the bearing rotates freely on the upper shaft to cause rotation of the lower fan. 
     
     
         18 . The power generator system of  claim 10 , wherein the upper and lower fans include blades, the blades of the upper fan include an upright airfoils causing the upper fan to rotate in the first direction and the blades of the lower fan include an inverse airfoils opposite the upright airfoils causing the lower fan to rotate in the second direction. 
     
     
         19 . The power generator system of  claim 10 , wherein the lower fan includes two bearings that rotate freely on the upper shaft to cause rotation of the lower fan. 
     
     
         20 . The power generator system of  claim 10 , further comprising a worm gearset at an uppermost portion of the upper shaft to control the direction of the inlet openings.